Yesterday I drove by a neighbor's house and he had some stuff lying out for free - I spied the Milwaukee brand hand-truck that had no tires, and a box next to it with tires, tubes, washers, caps (pound on the end as a keeper). I snagged them. 4" tube-type tires are no joke to put on, but once again the magic combo of window washer (Windex in USA), heat from the sun, and most critically, zip ties made the job a success.
I already have a hand truck, so I'm gonna knock on his door and see if he wants it back. I'm almost sure he just couldn't get them mounted.